Property and Equipment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Gross carrying amount	$ 19,371,087		$ 19,371,087		$ 19,015,099
Accumulated depreciation	(17,459,942)		(17,459,942)		(16,867,911)
Property and Equipment, net	1,911,145		1,911,145		$ 2,147,188
Depreciation expense	350,732	$ 447,410	722,561	$ 940,727
Property, Plant and Equipment, Disposals	138,425	240,917	138,425	240,917
Accumulated depreciation, disposals	$ 125,240	$ 142,908	$ 125,240	$ 142,908